Medium 6.0Published Jul 14, 2026

CVE-2026-49981Twig: Sandbox filter, tag and function allow-list bypass when sandbox state changes between renders for a cached `Template`

Updated under an hour ago (Oct 28, 2026, 3:50 AM ET)

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It affects twigphp Twig and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for twigphp Twig

Exploited in the last 30 days

Twig is a template language for PHP. Prior to 3.27.0, the per-template filter, tag, and function allow-list verdict is computed when a Template instance is constructed and can remain cached after sandbox state changes between renders, allowing a later sandboxed render to reuse a template that was originally checked with a different or empty policy. This issue is fixed in version 3.27.0.

CVSS: 6.0 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Weakness (CWE): CWE-693, CWE-863
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Jul 21, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

twigphp Twig twigphp:twig (from the name)	before 3.27.0	CNA record
symfony twig symfony:twig	before 3.27.0	NVD

References

References

https://github.com/twigphp/Twig/security/advisories/GHSA-529h-vh3j-85hq	x-refsource-confirm, vendor-advisory
https://github.com/twigphp/Twig/commit/23eb6eb1267cb0d303b91eb5cff9b0c559c538a4	x-refsource-misc, patch
https://github.com/twigphp/Twig/releases/tag/v3.27.0	x-refsource-misc, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.